Clean Water Act discharge permit · NPDES ID0025429
U.S. SILVER CORPORATION - IDAHO INC (CALADAY MINE), Wallace, ID: NPDES ID0025429 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
U.S. SILVER CORPORATION - IDAHO INC (CALADAY MINE), held by U.S. SILVER CORP - IDAHO INC, holds NPDES permit ID0025429, which discharges to Daly Creek. EPA’s file records it issued March 30, 1990 and expiring March 30, 1995. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | U.S. SILVER CORPORATION - IDAHO INC (CALADAY MINE) |
|---|---|
| Permittee as filed | U.S. SILVER CORP - IDAHO INC |
| NPDES ID | ID0025429 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 30, 1990 |
| Expiration date | March 30, 1995 |
| Address | Wallace, ID 83873 |
| Receiving water | DALY CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Twomile Creek-South Fork Coeur d'Alene River (HUC 170103020301) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 8Under a numeric limit
- 8With a violation of any kind
- 3With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 6 | 26 | 4 | August 31, 2016 | 420% over the limit |
| Copper, total [as Cu] | 6 | 23 | 2 | June 30, 2008 | 567% over the limit |
| Mercury, total [as Hg] | 6 | 22 | 2 | April 30, 1996 | 100% over the limit |
| pH | 10 | 29 | 0 | ||
| Cadmium, total [as Cd] | 6 | 22 | 0 | ||
| Lead, total [as Pb] | 6 | 22 | 0 | ||
| Zinc, total [as Zn] | 6 | 22 | 0 | ||
| Flow, in conduit or thru treatment plant | 5 | 14 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES ID0025429.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID ID0025429 there.
Nearby on the register
- Discharge permits in Wallace
- Every permit record in Wallace, A to Z
- Discharge permits in Idaho
- Every permit record in Idaho, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.